const express = require("express");
const router = express.Router();
const {verify} = require("../utils/jwt")
const cartModel = require("../db/model/cartModel")
const userModel = require("../db/model/userModel")
router.post("/add",async (req,res) => {
  const {name,price,num,token} = req.body 
  if(!token) return  res.send({ msg: "token缺失", code: -999})
  // 根据token解析出用户信息
  let info = {}
  try {
    info = await verify(token);
  } catch (error) {
    console.log(error)
    return  res.send({ msg: "token非法", code: -998})
  }
  // token 是否已经被替换  根据token 和 id 查询数据库是否存在对应的数据 如果存在那就是没有问题 
  const tokenIsHava = await userModel.findOne({_id: info._id, token})
  if(!tokenIsHava) return res.send({ msg: "token失效", code: -997})
  const result = await cartModel.insertMany({name,price,num,uid:info._id})
  if(!result) return res.send({ msg: "加入购物车失败", code: -1})
  res.send({ msg: "加入购物车成功", code: 0})
})


module.exports = router
